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Chill hours in 93722

The short answer

93722 averages 989 chill hours per winter (8341,454 across 10 years) in USDA zone 9b.
93722 climate
Average chill hours989 (834–1,454 across 10 winters)
USDA hardiness zone9b
Last spring frosttypically January 12 – February 25

Computed from 10 winters of ERA5 hourly temperature (Open-Meteo, 2015–2025); zones from USDA PHZM 2023. Data updated July 3, 2026. See methodology.

Every variety in our database, checked against 93722’s chill hours and zone:

How many chill hours does 93722 get?
93722 averages 989 chill hours per winter, ranging from 834 to 1454 across the last 10 years.
What hardiness zone is 93722?
93722 is in USDA hardiness zone 9b.

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Sources

  1. [1] Open-Meteo / Copernicus ERA5. Historical Weather API (hourly 2m temperature) — accessed July 2026
  2. [2] USDA / PRISM (Oregon State University). 2023 USDA Plant Hardiness Zone Map — accessed July 2026